lol - the question was the subject line -- is there a gun compatible with res evil 4?

Well by gun you mean any 'plastic shell shaped like a gun'..
Having said that, any of them are "compatible"

Word of caution though, since Resident Evil 4 requires that you aim by holding down B and then fire by pressing A..
If you really want to use one - Make sure you completely ignore the design of the shell, grab onto the barrel region and try holding onto the remote itself as best as you can..

[ Not using a gun shell may be easier, since using one is impossible ]

Well by gun you mean any 'plastic shell shaped like a gun'..
Having said that, any of them are "compatible"

Word of caution though, since Resident Evil 4 requires that you aim by holding down B and then fire by pressing A..
If you really want to use one - Make sure you completely ignore the design of the shell, grab onto the barrel region and try holding onto the remote itself as best as you can..

[ Not using a gun shell may be easier, since using one is impossible ]

Yeah...that's the only way to really do it. And its too cumbersome to even bother with so I wouldn't suggest using a gun with RE4.